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Finding the Fourth Proportional to 82,744.80, 124,117.20 and 76,264.80

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Solution

The fourth proportional to 82,744.80, 124,117.20 and 76,264.80 is: 114,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,744.80 : 124,117.20 = 76,264.80 : x
  2. Step 2: Convert to fraction form
    82,744.80/124,117.20 = 76,264.80/x
  3. Step 3: Cross multiply
    82,744.80x = 124,117.20 × 76,264.80
  4. Step 4: Simplify right side
    82,744.80x = 9,465,773,434.56
  5. Step 5: Solve for x
    x = 9,465,773,434.56/82,744.80
  6. Step 6: Final answer
    x = 114,397.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.